Strand Length: approx. 15.5 inches.
100% natural ruby & sapphire beads!Ruby and Sapphire are both forms of corundum, which is a type of aluminum oxide. Corundum has a specific gravity around 4 g/cm3, meaning that is is approximately 50% heavier than quartz.
Ruby is the birthstone of July, and Sapphire is the birthstone of September.